AMF Venner - Wiring Diagram?

[45nice1]

I've recently bought a Tado thermostat with Hot water to replace a very old (90s) AMF Venner CHC/W2 programmer. Problem is I cannot fathom the wiring and thought if I put all of what I know together, someone with the knowledge would be able to help me!

I can't seem to find a wiring diagram for the programmer, but I was able to find replacement programmer diagrams from Danfoss, which may be able to help work out the wires.

(Link: https://www.mytub.co.uk/product_images/danf8585v01s703.pdf)

 

[45nice1]

After scouring the internet for a manual: https://epdf.tips/domestic-central-heating-wiring-systems-and-controls-second-edition.html

I think this is what I'm looking for - it corresponds to the L, N and 1234 that is seen on the images.

I'm not sure how this links to the Tado however:

Any light to shed on this is much appreciated!